CN110444879A - A kind of double-frequency broadband implanted antenna loading complementary openings resonance monocycle - Google Patents
A kind of double-frequency broadband implanted antenna loading complementary openings resonance monocycle Download PDFInfo
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- CN110444879A CN110444879A CN201910783128.2A CN201910783128A CN110444879A CN 110444879 A CN110444879 A CN 110444879A CN 201910783128 A CN201910783128 A CN 201910783128A CN 110444879 A CN110444879 A CN 110444879A
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- 230000000295 complement effect Effects 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 230000005855 radiation Effects 0.000 claims abstract description 30
- 239000000523 sample Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 210000001519 tissue Anatomy 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 5
- 238000011160 research Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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Abstract
The invention discloses a kind of double-frequency broadband implanted antennas for loading complementary openings resonance monocycle, including upper layer medium substrate, layer dielectric substrate, grounding probe, metal radiation unit, feed and floor, the metal radiation unit is between upper layer medium substrate and layer dielectric substrate, floor is located at the lower surface of the layer dielectric substrate, the metal radiation unit is connected with the floor by the grounding probe, and the feed is between metal radiation unit and floor.The present invention has many advantages, such as that size is small, double frequency impedance bandwidth is wider.
Description
Technical field
The present invention relates to biomedical telemetry fields, and in particular to a kind of double-frequency broadband for loading complementary openings resonance monocycle
Implanted antenna.
Background technique
With the continuous promotion of social medical services and technical level, wireless implantable medical device is in body temperature and intracranial pressure
Measurement, heart rate and blood glucose level monitor etc. are more and more widely used.Doctor can be set by implantable medical
The limitation of standby break through and spatial dimension, remotely provides diagnosing and treating service for patient.Antenna is set as implantable medical
The standby Primary Component that wireless data transmission is carried out with external equipment, design and actual performance are due to complicated tissue environment
It is faced with lot of challenges.
According to the relevant regulations of Federal Communications Committee (Federal Communications Commission, FCC),
Industry, scientific research, 902-928 MHz and 2.40- in medical treatment (Industrial Scientific Medical, ISM) frequency range
2.48 GHz can be used for the working frequency range of implanted antenna.Since current most of implantable medical device is powered using battery,
And more is single-frequency, but the antenna of single-frequency characteristic cannot realize the switching of device sleeps and awakening mode well, make it
It is constantly in the higher operating mode of power consumption, reduces the service life of battery.For in the research of current implanted antenna, day
The actual performance of line be easy because be implanted into human body environment it is complicated and changeable due to generate the offset of frequency, the implanted antenna of narrower bandwidth
It is easy to deviate the working frequency range needed for us in practical applications.
Summary of the invention
In order to overcome the shortcomings of existing biomedical telemetry antenna technology, the present invention provides a kind of load complementary openings resonance
The double-frequency broadband implanted antenna of monocycle.
The purpose of the present invention is realized at least through one of following technical scheme.
A kind of double-frequency broadband implanted antenna loading complementary openings resonance monocycle, including upper layer medium substrate, lower layer are situated between
Matter substrate, grounding probe, metal radiation unit, feed and floor, the metal radiation unit are located at upper layer medium substrate under
Between layer medium substrate, floor is located at the lower surface of the layer dielectric substrate, and the metal radiation unit and the floor are logical
The grounding probe connection is crossed, the feed is between metal radiation unit and floor.
Further, three sinuous metal minor matters that the metal radiation unit is drawn by intermediate rectangular patch and lower section
It constitutes.
Further, it slots to form opening resonance monocycle, the opening resonance monocycle at intermediate rectangular patch center
For rectangular ring structure, and there is a rectangular aperture opening at the straight-flanked ring upper center.
Further, the metal minor matters include rectangular metal minor matters, right side L shape metal detail and left side L shape metal branch
Section, right side L shape metal detail are located at the upper right side of intermediate rectangular patch, and left side L shape metal detail is located at intermediate rectangular patch
Lower left, intermediate rectangular patch lower section is rectangular metal minor matters.
Further, the grounding probe will be located at intermediate rectangular by layer dielectric substrate in three metal minor matters
Metal minor matters below patch connect with floor.
Further, the feed is coaxial feed, described to be coaxially located in antenna centerline.
Further, the upper layer medium substrate and layer dielectric substrate are rectangle layer structure, and the floor is rectangle
Structure.
Further, upper layer medium substrate, layer dielectric substrate are identical with ground board size, and upper layer medium substrate and lower layer
The material of medium substrate is identical.
Beneficial effects of the present invention:
The present invention loads complementary opening resonance monocycle can increase resonance point, while three metal minor matters point under finite size
A plurality of current path is flowed into, also can produce multiple resonance points, multiple resonance points are close to each other to can reach expansion bands by adjusting
Wide effect；The load of grounding probe greatly reduces resonance frequency, and the serpentine structure of three metal minor matters extends electric current road
Diameter has the function of reducing antenna size as grounding probe；Antenna impedance bandwidth covers two frequency ranges, it can be achieved that multiple
Operating mode is to reduce the power consumption of implantable medical device；Using complete floor panel structure, the other elements of equipment are being reduced
While electromagnetic interference, antenna is also reduced to the radiation hazradial bundle of human body.
Detailed description of the invention
Fig. 1 and Fig. 2 is a kind of bowing for double-frequency broadband implanted antenna for loading complementary openings resonance monocycle of the present invention respectively
View, side view；
Fig. 3 is a kind of three layers of tissue phantom of the double-frequency broadband implanted antenna for loading complementary openings resonance monocycle of the present invention
Simulated environment figure；
Fig. 4 is a kind of reflection coefficient S for the double-frequency broadband implanted antenna for loading complementary openings resonance monocycle of the present invention11Curve
Figure；
Fig. 5 is a kind of double-frequency broadband implanted antenna for loading complementary openings resonance monocycle XOZ at 915 MHz frequency points of the present invention
With the antenna pattern of YOZ plane；
Fig. 6 is a kind of double-frequency broadband implanted antenna for loading complementary openings resonance monocycle of the present invention at 2.45 GHz frequency points
The gain pattern of XOZ and YOZ plane；
It is shown in figure: 1A- upper layer medium substrate, 1B- layer dielectric substrate, 2- grounding probe, 3- feed, 4- metal radiation list
Member, the floor 5-, 6A- rectangular patch, 6B- opening resonance monocycle, 7- rectangular metal minor matters, the right side 8- L shape metal detail, the left side 9-
L shape metal detail.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
Such as Fig. 1 and Fig. 2, a kind of double-frequency broadband implanted antenna loading complementary openings resonance monocycle, including upper and lower layer are situated between
Matter substrate 1A, 1B, grounding probe 2, metal radiation unit 4, feed 3 and floor 5, the metal radiation unit 4 is described upper and lower
Between layer medium substrate 1A, 1B, the floor 5 is located at the lower surface of layer dielectric substrate 1B, the metal radiation unit 4 and institute
It states floor 5 to connect by the grounding probe 2, the metal radiation unit 4 is wriggled by the rectangular patch of centre fluting and three
Metal minor matters constitute, the antenna is implanted in three layers of tissue phantom and emulates.
The metal radiation unit 4 is the composition that is connected after rectangular patch 6A slots with three metal minor matters 7,8,9, described
4 outside of metal radiation unit most greatly enhances and wide respectively Lb=7.9mm and La1=7.7mm.The length and width point of the rectangular patch 6A
Not Wei the mm of the mm of L1=6.8 and L2=5.7, the fluting is to be centrally formed an opening resonance monocycle 6B in the rectangular patch,
The opening resonance monocycle 6B is the rectangular ring structure that there are aperture slots in top, and the outside rectangular of the rectangular ring structure is long
With the wide respectively mm of the mm of L3=5 and L4=3.65, the ring width of the rectangular ring structure is the mm of d1=0.8, and the opening is humorous
The mm of width d2=0.15 for monocycle 6B upper center opening of shaking, and the middle line about metal radiation unit 4 is symmetrical.The opening is humorous
Above vibration monocycle 6B outer edge and rectangular patch 6A top edges distance is d5=0.35mm.
Three metal minor matters 7,8,9, which are wriggled, to be centered around around the rectangular patch 6A, is connected with the rectangular patch 6A
Connecing place's width is d3=0.35mm, and 7 length of rectangular metal minor matters is L5=5.6mm, and width is w2=0.5mm, by described
Grounding probe 2 is connected to the floor 5, and the grounding probe diameter is 0.4mm, 7 end of rectangular metal minor matters described in circle center distance
The size at end is a=0.65mm.The L-shaped strip of right side L shape metal minor matters 8, inflection point are located at the right side of the metal radiation unit 4
Upper angle, horizontal component and vertical component length are La1=7.7mm and La2=7mm, and horizontal component and vertical component width are respectively
W1=0.55mm and w4=0.2mm, below the horizontal components of the right side L shape metal minor matters 8 with above the rectangular patch 6A away from
From for d4=0.5mm.Left side L shape metal minor matters 9 are also the sinuous band of L-type, positioned at the lower left of the rectangular patch 6A,
Vertical component and horizontal component length are L6=3.8mm and L7=3.675mm, and width is w3=0.2mm.
The present invention is etched with opening resonance monocycle on radiating element, can produce multiple resonance points, improves impedance matching.
And the effective current path that three sinuous metal minor matters are able to extend metal radiation cell surface is connected, smaller ruler is being kept
Increase multiple resonance points while very little, to broaden the impedance bandwidth of antenna.
The upper layer medium substrate 1A and layer dielectric substrate 1B is rectangle layer structure；The floor 5 is rectangular configuration,
Length and width is respectively Lb=7.9mm and La1=7.7mm.
The present invention other than the circular hole of feed location, on floor 5 without fluting and gap, advantageously reduce antenna performance by
The electromagnetic interference of other components, while reducing antenna to the radiation hazradial bundle of human body.
The feed 3 is coaxial feed, described to be coaxially located between metal radiation unit 4 and floor 5, and is located in antenna
On heart line, coaxial and 4 abutted surface of metal radiation unit the center of circle is at a distance from 4 lower edge of metal radiation unit
B=2.8mm, the coaxial inner core diameter are 0.7mm.
The grounding probe 2 connects the rectangular metal minor matters 7 with the floor 5, can substantially reduce the humorous of antenna
Vibration frequency reduces the size of antenna.The grounding probe 2 is located in layer dielectric substrate 1B.2 diameter of grounding probe is
0.4mm, the center of circle are a=0.65mm at a distance from 7 end of rectangular metal minor matters.
The upper layer medium substrate 1A is covered on the top of the metal radiation unit 4, baseplate material Rogers
Ro3210, relative dielectric constant are 10.2, and loss angle tangent 0.003 advantageously reduces antenna using high dielectric constant material
Size.The length and width of the upper layer medium substrate 1A is identical as floor 5, respectively Lb=7.9mm, La1=7.7mm, with a thickness of
0.635mm.The layer dielectric substrate 1B is between the metal radiation unit 4 and floor 5, material properties and size and institute
It is identical to state upper layer medium substrate 1A.
The antenna is implanted in three layers of tissue phantom and emulates, and three layers of tissue phantom is cuboid
Structure, as shown in figure 3, it is followed successively by skin, fat, muscle layer from top to bottom, the electromagnetic parameters such as relative dielectric constant, conductivity
It is different due to the variation of frequency.
As shown in figure 3, the thickness of skin, fat, muscle layer is respectively 4mm, 4mm, 60mm, the antenna is implanted to muscle
At the lower dp=4mm of layer, antenna is 60 mm at a distance from model surrounding.When frequency is 915 MHz, skin, fat, at muscle layer
Relative dielectric constant be respectively 41.3,5.46,55, conductivity distinguish 0.87S/m, 0.051 S/m, 0.948 S/m；Work as frequency
For 2.45 GHz, skin, fat, the relative dielectric constant difference 38,5.28,52.72 at muscle layer, conductivity is respectively
1.464 S/m、0.104 S/m、1.739 S/m。
It is emulated as shown in figure 4, the antenna is placed in three layers of tissue phantom, reflection coefficient S11Less than -10dB's
Frequency range is 670-1050MHz(380 MHz) and 2.10-2.94 GHz(840 MHz), cover the 902-928 in ISM
Two frequency ranges of MHz and 2.40-2.48 GHz, relative bandwidth have respectively reached 44.2% and 33.3%.
As shown in Figure 5 and Figure 6, it is implanted in three layers of tissue phantom for the antenna, in 915 MHz and 2.45 GHz
The antenna pattern of XOZ and YOZ plane at two frequency bins.Peak gain of the antenna at 915 MHz and 2.45 GHz point
It Wei not -36dBi, -30dBi.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of double-frequency broadband implanted antenna for loading complementary openings resonance monocycle, which is characterized in that including top dielectric base
Plate (1A), layer dielectric substrate (1B), grounding probe (2), metal radiation unit (4), feed (3) and floor (5), the metal
Radiating element (4) is located between upper layer medium substrate (1A) and layer dielectric substrate (1B), and floor (5) are located at the layer dielectric
The lower surface of substrate (1B), the metal radiation unit (4) and the floor (5) are connected by the grounding probe (2), described
Feed (3) is located between metal radiation unit (4) and floor (5).
2. double-frequency broadband implanted antenna according to claim 1, which is characterized in that the metal radiation unit (4) by
Three sinuous metal minor matters that intermediate rectangular patch (6A) and lower section are drawn are constituted.
3. double-frequency broadband implanted antenna according to claim 2, which is characterized in that in the intermediate rectangular patch (6A)
It slots to form opening resonance monocycle (6B) at the heart, the opening resonance monocycle (6B) is rectangular ring structure, and in the opening
There is a rectangular aperture opening at resonance monocycle (6B) upper center.
4. double-frequency broadband implanted antenna according to claim 2, which is characterized in that the metal minor matters include rectangle gold
Belong to minor matters (7), right side L shape metal detail (8) and left side L shape metal detail (9), right side L shape metal detail (8) and is located at intermediate square
The upper right side of shape patch (6A), left side L shape metal detail (9) are located at the lower left of intermediate rectangular patch (6A), intermediate rectangular patch
It is below piece (6A) rectangular metal minor matters (7).
5. double-frequency broadband implanted antenna according to claim 4, which is characterized in that the rectangular metal minor matters (7) with
Floor (5) is connected by grounding probe (2), and the grounding probe (2) is located in layer dielectric substrate (1B).
6. double-frequency broadband implanted antenna according to claim 1, which is characterized in that the feed (3) is coaxial feed,
And it is coaxially located on the center line of antenna.
7. double-frequency broadband implanted antenna according to claim 1, which is characterized in that the upper layer medium substrate (1A) and
Layer dielectric substrate (1B) is rectangle layer structure, and the floor (5) is rectangular configuration.
8. double-frequency broadband implanted antenna according to claim 1, which is characterized in that upper layer medium substrate (1A), lower layer
Medium substrate (1B) is identical with floor (5) size, and upper layer medium substrate (1A) is identical with the material of layer dielectric substrate (1B).
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| CN201910783128.2A CN110444879A (en) | 2019-08-23 | 2019-08-23 | A kind of double-frequency broadband implanted antenna loading complementary openings resonance monocycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586995A (en) * | 2020-06-16 | 2020-08-25 | 上海泽丰半导体科技有限公司 | Multilayer organic substrate and manufacturing method thereof |
| CN112882376A (en) * | 2019-11-29 | 2021-06-01 | RealMe重庆移动通信有限公司 | Wearable electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210430101U (en) * | 2019-08-23 | 2020-04-28 | 华南理工大学 | Dual-frequency broadband implanted antenna loaded with complementary open-ended resonant single ring |
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2019
- 2019-08-23 CN CN201910783128.2A patent/CN110444879A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210430101U (en) * | 2019-08-23 | 2020-04-28 | 华南理工大学 | Dual-frequency broadband implanted antenna loaded with complementary open-ended resonant single ring |
Non-Patent Citations (1)
| Title |
|---|
| MERVE USLUER等: "Dual Band Implantable Antenna for Biomedical Applications", 《2016 URSI INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC THEORY (EMTS)》, 1 August 2016 (2016-08-01), pages 1 - 4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112882376A (en) * | 2019-11-29 | 2021-06-01 | RealMe重庆移动通信有限公司 | Wearable electronic equipment |
| CN112882376B (en) * | 2019-11-29 | 2022-06-14 | RealMe重庆移动通信有限公司 | Wearable electronic equipment |
| CN111586995A (en) * | 2020-06-16 | 2020-08-25 | 上海泽丰半导体科技有限公司 | Multilayer organic substrate and manufacturing method thereof |
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